Group search results, filter and sort results by price or price per count.
I have a similar extension - "Amazon Unit Price" available in Chrome, Edge, Firefox, and Safari (named "Unit Price helper"). I could be selfish and downvote this to put my own up, but in fairness I can't do that. After downloading and running on Amazon.com -- the extension doesn't promise to do anything it doesn't do. The ability to search per page and the unique way of displaying it truly works. The critical feedback I would say is sorting by "count" is a little misleading as the "count" is an actual unit, but the sorting here is by all units -- lowest to highest. So when scrolling you may have count items (e.g., vitamins), but then later you'd have "fluid oz" unit (liquid vitamin), and then count again (a higher price per unit count). Some people only want to sort by a unit at a time, not see the lowest of all units. This is more like my extension does with the "all" unit I made, but having the original units (e.g., count, fl oz, oz, gram) and being able to compare would be helpful. Look at my extension for other features or ideas you'd like to borrow. But yeah not a bad job!
Please add for Amazon Australia
Tried on Amazon.com and it doesn't seem to do anything, it tries to sort but no filtering/sorting happens... it just removed products and seeminly replaced them with irrelevant ones. It also doesn't work on various different amazons
https://amazonunitprice.netlify.app/
Noroch
https://lindle.me
Guillaume Balas
sort by Review Count for Amazon
https://gimmethat.me
Petr Savichev (proton)
Harsh Ankur
https://impexion.com/
because_curious
Paren, LLC
https://tabsearch.pro